Image forming system

Abstract

An image forming system includes an image forming apparatus configured to form a toner image on a recording material, a varnish application apparatus configured to apply a varnish to the recording material, and a control unit. The control unit is configured to apply a first application amount of varnish to the recording material per unit area in a case of executing the image forming job for forming a varnish layer on a recording material having a first grammage, and is configured to apply a second application amount of varnish to the recording material per unit area in a case of executing the image forming job for forming the varnish layer on a recording material having a second grammage lower than the first grammage, the second application amount being higher than the first application amount.

What is claimed is: 
     
       1. An image forming system comprising:
 an image forming apparatus configured to form a toner image on a recording material; 
 a varnish application apparatus configured to apply a varnish to the recording material; and 
 a control unit configured to control the image forming apparatus and the varnish application apparatus to execute an image forming job for forming the toner image on the recording material and applying the varnish, 
 wherein the control unit is configured to apply a first application amount of varnish to the recording material per unit area in a case of executing the image forming job for forming a varnish layer on a recording material having a first grammage, and is configured to apply a second application amount of varnish to the recording material per unit area in a case of executing the image forming job for forming the varnish layer on a recording material having a second grammage lower than the first grammage, the second application amount being higher than the first application amount. 
 
     
     
       2. The image forming system according to  claim 1 , wherein the control unit is configured to apply the first application amount of varnish to the recording material per unit area in a case of executing the image forming job for forming the varnish layer on a recording material having a first air permeability, and is configured to apply the second application amount of varnish to the recording material per unit area in a case of executing the image forming job for forming the varnish layer on a recording material having the same grammage as that of the recording material having the first air permeability, and having a second air permeability lower than the first air permeability, the second application amount being higher than the first application amount. 
     
     
       3. The image forming system according to  claim 1 , further comprising:
 a storage configured to store a reference value of a varnish application amount for each type of recording material; and 
 an input unit configured to input an application amount correction value for adjusting an application amount of the varnish to be applied to the recording material at a time of executing the image forming job by correcting the reference value of the varnish application amount stored in advance. 
 
     
     
       4. The image forming system according to  claim 2 , further comprising:
 a detection unit provided in the image forming apparatus and configured to detect an air permeability of the recording material before the toner image is formed; and 
 a storage configured to store a reference value of a varnish application amount for each type of recording material, 
 wherein the control unit is configured to execute a registration mode in which the detection unit detects the air permeability of the recording material in the image forming apparatus, and the reference value corresponding to the detected air permeability is set in the storage based on a preset relationship between the air permeability of the recording material and the reference value of the varnish application amount. 
 
     
     
       5. The image forming system according to  claim 4 , further comprising a display unit, wherein the control unit is configured to display, on the display unit, a type of the recording material corresponding to the air permeability detected in the registration mode and the reference value set in the registration mode, at a time of executing the registration mode. 
     
     
       6. The image forming system according to  claim 4 , further comprising an input unit configured to input the air permeability of the recording material stored in the storage. 
     
     
       7. The image forming system according to  claim 1 , wherein
 the varnish is an ultraviolet curable varnish, and 
 the varnish application apparatus comprises an application unit configured to apply the varnish to the recording material, and an irradiation unit configured to irradiate the varnish applied to the recording material with ultraviolet rays. 
 
     
     
       8. An image forming system comprising:
 an image forming apparatus configured to form a toner image on a recording material; 
 a varnish application apparatus configured to apply a varnish to the recording material; 
 a control unit configured to control the image forming apparatus and the varnish application apparatus to execute an image forming job for forming the toner image on the recording material and applying the varnish; and 
 a detection unit provided in the image forming apparatus and configured to detect an air permeability of the recording material before the toner image is formed, 
 wherein the control unit is configured to apply a first application amount of varnish to the recording material per unit area in a case of executing the image forming job for forming a varnish layer on a recording material having a first air permeability, and is configured to apply a second application amount of varnish to the recording material per unit area in a case of executing the image forming job for forming the varnish layer on a recording material having a second air permeability lower than the first air permeability, the second application amount being higher than the first application amount.